Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 7:18 am (0.2 ft)
Next high tide : in 43m at 12:48 am (6.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:27 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Dec 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:386.55:100.96:021.17:065:22Waxing Crescent1Fri
2Sat12:035.712:226.35:531.16:481.17:075:22First Quarter2Sat
3Sun12:495.71:096.16:451.37:391.17:085:22First Quarter3Sun
4Mon1:385.71:596.17:451.38:320.97:095:22First Quarter4Mon
5Tue2:305.92:526.08:471.29:240.77:095:23First Quarter5Tue
6Wed3:246.23:486.19:481.010:160.37:105:23Waxing Gibbous6Wed
7Thu4:196.64:446.310:470.711:070.07:115:23Waxing Gibbous7Thu
8Fri5:117.15:376.511:440.311:58-0.47:125:23Waxing Gibbous8Fri
9Sat6:027.66:286.712:39-0.17:125:23Waxing Gibbous9Sat
10Sun6:518.07:176.812:50-0.71:33-0.57:135:23Full Moon10Sun
11Mon7:408.28:076.91:41-1.02:24-0.77:145:23Full Moon11Mon
12Tue8:318.38:596.92:32-1.23:15-0.87:145:24Full Moon12Tue
13Wed9:248.29:556.83:23-1.24:06-0.87:155:24Waning Gibbous13Wed
14Thu10:218.010:546.64:15-1.04:59-0.67:165:24Waning Gibbous14Thu
15Fri11:197.711:556.55:11-0.85:55-0.47:165:25Waning Gibbous15Fri
16Sat12:197.36:12-0.46:55-0.37:175:25Third Quarter16Sat
17Sun12:576.51:187.07:18-0.17:57-0.27:185:25Third Quarter17Sun
18Mon1:596.42:186.78:270.08:57-0.27:185:26Third Quarter18Mon
19Tue3:016.53:186.49:320.19:53-0.37:195:26Third Quarter19Tue
20Wed4:016.64:166.310:320.010:46-0.37:195:27Waning Crescent20Wed
21Thu4:586.85:116.211:27-0.111:35-0.47:205:27Waning Crescent21Thu
22Fri5:487.06:016.212:19-0.27:205:28Waning Crescent22Fri
23Sat6:347.16:476.212:22-0.41:07-0.27:215:28Waning Crescent23Sat
24Sun7:167.17:296.21:05-0.41:50-0.37:215:29New Moon24Sun
25Mon7:557.18:096.11:46-0.42:30-0.37:215:29New Moon25Mon
26Tue8:337.08:486.02:23-0.33:07-0.27:225:30New Moon26Tue
27Wed9:106.89:275.82:58-0.23:41-0.17:225:31New Moon27Wed
28Thu9:476.610:055.73:32-0.14:140.07:235:31Waxing Crescent28Thu
29Fri10:246.410:435.54:060.14:480.27:235:32Waxing Crescent29Fri
30Sat11:016.111:235.54:410.35:240.37:235:33Waxing Crescent30Sat
31Sun11:406.05:200.46:030.47:235:33Waxing Crescent31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8677344)

Common Questions About St. Simons Island, GA Tides

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What time does the tide turn (slack tide) in St. Simons Island, GA today?

Slack tide in St. Simons Island, GA is approximately 4:03 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in St. Simons Island, GA?

St. Simons Island, GA is currently in a transitional phase. Tonight's moon is 62% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are St. Simons Island, GA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for St. Simons Island, GA?

Tide predictions for St. Simons Island, GA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for St. Simons Island, GA?

Tide data for St. Simons Island, GA is sourced from NOAA Station #8677344. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8677344.

What is the moon phase in St. Simons Island, GA tonight?

Tonight the moon over St. Simons Island, GA is Third Quarter (62% illuminated). This places St. Simons Island, GA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA